Propane burner............

Goose

Well-known Member
If everthing else is equal, will a propane fueled tractor sell for more or less than a gasoline burner?

I'm thinking specifically of a D17 AC. I don't know what year it is, but according to my AC Data Book, out of some total 62,000 D17's built from 1957 to 1967, only 1815 propane burners were built from 1958 to 1962, with the number unknown for other years.

Also, to convert one to gasoline, would anything be necessary besides the obvious, fuel tank, carburetor, and possibly sheet metal? The propane burners had 8.25:1 compression ratio compared with 7.5:1 for gasoline.

The one I'm thinking of belonged to a long time friend of mine who died a couple of years ago and his widow is now having an auction. I remember him farming with it around 1970, but never paid that much attention to it. I haven't even seen it in years, so I have no idea what condtion it is in, now. The owner was rather inactive physically for about ten years before he died, so the tractor may not even have run for a bunch of years.

Any opinions would be appreciated.
 
They generally sell for less because not everybody wants one. I like them myself because the fuel never goes bad. If you want a gas one, buy a gas one.
 
I would never convert from an LP tractor to gasoline, When I worked for Allis Chalmers we traded a fleet of new D-17's and took in a fleet of WD's that had been changed to LP. They ran beautifully on LP but they were worn so badly that they had to be brought back in for a major overhaul to burn gasoline. Apparently they can be badly worn and still run well on LP but be so badly worn that they will foul the plugs. Converting from the add on PL systems to gasoline was my first assignment. I did not do the overhauls.
 
I took a LA Case propane and converted it to gas. Propane engines are extremely clean inside. It ran great on gas and did a ton of work pulling a dirt pan building my pond and pulling a big disc. No problems whatsoever.
Richard
 
The LP tractors seem to sell for less but if I had one and my intention was to work it I don't think I'd want to convert it to gasoline. LP is really a better fuel for engines it has more octane, burns cleaner and our government hasn't messed with it under the guise of saving us from ourselves. Neighbor I worked for in High School had a Farmall 806 LP gas special, He'd get a load on to that old girl and she'd hunker down and get to work it looked like water vapor pouring out of the stack.
 
They are more popular in the south than north because they can be hard to start when it's cold. When it's really cold like here in Mn. the propane won't gassify so it won't work right.
 
Umm...

I don"t know how cold it gets in Mn, but propane vaporizes at around -150 degrees F.

Some of the bad rap is leftover from when you could also get Butane, which has a much higher flash point, something like 40 degrees. Back when, "propane" was a looser mix containing propane, butane and propylene. Now most everything sold meets the hd5 spec which is minimum 90% propane.

It does take a hotter spark to light the stuff off compared to gasoline.
 
(quoted from post at 00:12:12 06/24/12) Umm...

I don"t know how cold it gets in Mn, but propane vaporizes at around -150 degrees F.

Some of the bad rap is leftover from when you could also get Butane, which has a much higher flash point, something like 40 degrees. Back when, "propane" was a looser mix containing propane, butane and propylene. Now most everything sold meets the hd5 spec which is minimum 90% propane.

It does take a hotter spark to light the stuff off compared to gasoline.

The boiling point of propane at atmospheric pressure is just under -40 degrees F or C. That is usually not a problem with motor fuel since they use a coolant heated vaporizer.
 

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